
/* Derived from the LibTomCrypt library (authored by Tom St Denis)  */

#include <stdio.h>
#include <stdlib.h>
#include <memory.h>

#include "ltc_ccm.h"

static const struct
{
    unsigned char key[16];
    unsigned char nonce[16];
    int noncelen;
    unsigned char header[64];
    int headerlen;
    unsigned char pt[64];
    int ptlen;
    unsigned char ct[64];
    unsigned char tag[16];
    int taglen;
}
tests[] =
{
    /* 13 byte nonce, 8 byte auth, 23 byte pt */
    {
        {
            0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
            0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF
        },
        {
            0x00, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, 0xA0,
            0xA1, 0xA2, 0xA3, 0xA4, 0xA5
        },
        13,
        {
            0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
        },
        8,
        {
            0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
            0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
            0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E
        },
        23,
        {
            0x58, 0x8C, 0x97, 0x9A, 0x61, 0xC6, 0x63, 0xD2,
            0xF0, 0x66, 0xD0, 0xC2, 0xC0, 0xF9, 0x89, 0x80,
            0x6D, 0x5F, 0x6B, 0x61, 0xDA, 0xC3, 0x84
        },
        {
            0x17, 0xe8, 0xd1, 0x2c, 0xfd, 0xf9, 0x26, 0xe0
        },
        8
    },

    /* 13 byte nonce, 12 byte header, 19 byte pt */
    {
        {
            0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
            0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF
        },
        {
            0x00, 0x00, 0x00, 0x06, 0x05, 0x04, 0x03, 0xA0,
            0xA1, 0xA2, 0xA3, 0xA4, 0xA5
        },
        13,
        {
            0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
            0x08, 0x09, 0x0A, 0x0B
        },
        12,
        {
            0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13,
            0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B,
            0x1C, 0x1D, 0x1E
        },
        19,
        {
            0xA2, 0x8C, 0x68, 0x65, 0x93, 0x9A, 0x9A, 0x79,
            0xFA, 0xAA, 0x5C, 0x4C, 0x2A, 0x9D, 0x4A, 0x91,
            0xCD, 0xAC, 0x8C
        },
        {
            0x96, 0xC8, 0x61, 0xB9, 0xC9, 0xE6, 0x1E, 0xF1
        },
        8
    },

    /* supplied by Brian Gladman */
    {
        {
            0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
            0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
        },
        {
            0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16
        },
        7,
        {
            0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
        },
        8,
        {
            0x20, 0x21, 0x22, 0x23
        },
        4,
        {
            0x71, 0x62, 0x01, 0x5b
        },
        {
            0x4d, 0xac, 0x25, 0x5d
        },
        4
    },

    {
        {
            0xc9, 0x7c, 0x1f, 0x67, 0xce, 0x37, 0x11, 0x85,
            0x51, 0x4a, 0x8a, 0x19, 0xf2, 0xbd, 0xd5, 0x2f
        },
        {
            0x00, 0x50, 0x30, 0xf1, 0x84, 0x44, 0x08, 0xb5,
            0x03, 0x97, 0x76, 0xe7, 0x0c
        },
        13,
        {
            0x08, 0x40, 0x0f, 0xd2, 0xe1, 0x28, 0xa5, 0x7c,
            0x50, 0x30, 0xf1, 0x84, 0x44, 0x08, 0xab, 0xae,
            0xa5, 0xb8, 0xfc, 0xba, 0x00, 0x00
        },
        22,
        {
            0xf8, 0xba, 0x1a, 0x55, 0xd0, 0x2f, 0x85, 0xae,
            0x96, 0x7b, 0xb6, 0x2f, 0xb6, 0xcd, 0xa8, 0xeb,
            0x7e, 0x78, 0xa0, 0x50
        },
        20,
        {
            0xf3, 0xd0, 0xa2, 0xfe, 0x9a, 0x3d, 0xbf, 0x23,
            0x42, 0xa6, 0x43, 0xe4, 0x32, 0x46, 0xe8, 0x0c,
            0x3c, 0x04, 0xd0, 0x19
        },
        {
            0x78, 0x45, 0xce, 0x0b, 0x16, 0xf9, 0x76, 0x23
        },
        8
    },
};

int ccm_test( void )
{
    unsigned long taglen, x;
    unsigned char buf[64], buf2[64], tag2[16], tag[16];
    int stat;

    for( x = 0; x < (sizeof(tests) / sizeof(tests[0])); x++ )
    {
        taglen = tests[x].taglen;

        ccm_memory( tests[x].key, 16, tests[x].nonce, tests[x].noncelen, tests[x].header,
                    tests[x].headerlen, (unsigned char *)tests[x].pt, tests[x].ptlen, buf,
                    tag, taglen, 0, 0);

        if( memcmp(buf, tests[x].ct, tests[x].ptlen) )
            goto error;
        if( memcmp(tag, tests[x].tag, tests[x].taglen) )
            goto error;

        ccm_memory( tests[x].key, 16, tests[x].nonce, tests[x].noncelen, tests[x].header,
                    tests[x].headerlen, buf2, tests[x].ptlen, buf,
                    tag, taglen, 1 , &stat );

        if( memcmp(buf2, tests[x].pt, tests[x].ptlen) )
            goto error;
        if( stat == RETURN_ERROR )
            goto error;
    }

    printf( "\nOK\n" );
    return RETURN_OK;
error: printf( "\nerror\n" );
    return RETURN_ERROR;
}

int main(void)
{
    ccm_test();
    return RETURN_OK;
}
